Joint connection



Nov. 3, 1953 M. Lv|NE 2,657,439

JOINT CONNECTION Filed June 8, 1949 3 Sheets-Sheet l M. LEVINE JOINT CONNECTION Nov. 3, 1953 3 Sheets-Sheet 2 Filed June 8. 1949 5 IVENTOR. Mba Levine Mfg/5%,

A ar'rzey Nov. 3, 1953 v M. i-:VINE 2,657,439

JOINT CONNECTION Filed June 8, 1949 I5 Sheets-Sheet 5 INVENTOR. .Mac L'eYTze Patented Nov. 3, 1953 UNITED STATES PATENT OFFICE JOINT CONNECTION Mac Levine, Worcester, Mass.

Application June 8, 1949, Serial No.97,743

(Cl. .Z0-92) 3 Claims.

This invention relates to new and improved constructions in joint connections and the like, particularly for connecting two or more members together to'iorm a joint such as, for instance, a corner, a T-joint, or a cross joint.

The principal object of the invention resides in the provision of a joint construction which is particularly adapted to but not limited to maliing joints for furniture and particularly for bed frames as, for instance, in spring bases commonly known as box springs, although it is to be clearly understood that the invention is not limited in this Way but may be practiced wherever it may be found desired or convenient.

Another object of the invention resides in the provision of a joint comprising a plurality of members `adapted to be secured together and resting on their edges, in spaced relation, there being a corner block connecting the members, and inthe provision off slots in the edges of the members, a band being inserted in the slots and passing across the gap deiined by the space be tween the members; the provision of a joint as aforesaid wherein the band is exposed and curved at the portion thereof that passes across the gap to produce a rounded corner and improving the ornamental appearance thereof or providing a convenient support for securenient of covering material; and the provision of a strong, neater land in all ways better and greatly improved joint of the class described.

Still further objects of the invention include the provision of a joint as above described whereinfthe band is connected at its meeting ends by an overlapping plate welded orotherwise secured to the ends of the band to Aconnect the same, said plate having a pair ci spacedV ears upstanding therefrom, each' ear being provided with a hole near the top of the corner block, to receive the lowermost run of a bed spring', and anchor the same iirmly to the bed spring frame without the necessity for any further fastening means, said plate having a iiange overlying the corner block for securernent mechanically thereto as by nails.

Other yobjects and advantages of the invention will appear hereinafter.

Reference is to be had drawings in which c Fig. 1 isa perspective view of a joint according to the present invention, parts being Ybroken away; Y z

Fig. 2 is an enlarged top plan View of the joint of Fig. l; c Y v 'g; 3 is a front View thereof;

to the accompanying Fig. 4 is a section on line 4-4 of Fig. 2;

Fig. 5 is a top plan view lof a modified joint; Fig. 6 shows a further modification;

Fig. 7 shows -a still further modification thereoi;

Fig. 8 is a iront edge view of a joint according to Fig. 1 but having a modied joint member construction;

Fig. 9 is an edge view of Yone form of table leg or the like which may be used with the present joint;

Fig. 10 is a perspective view of the leg of Fig. 9;

Fig. ll shows another type of joint;

Fig. l2 illustrates av corner 4joint with a solid corner block;

Fig. 13 is a plan view of a corner joint with the spring anchor and band connector;

Fig. 14 is a section on line I 4-I 4 of Fig. 13;

Fig. 15 is arperspective view of the spring anchor and band connector; and

Fig. 16 is a section on line IIi-I of Fig. 13.

The present invention relates to a joint for a plurality of members and particularly relates but it is not limited to corner joints. One of the main benefits to be derived by the present joint construction resides in the 'furniture art as, for instance, cornerjoints for the legs of chairs and tables. On the other hand, the present joint is also particularly useful in any kind of furniture or other construction and one of these is in the base or box spring art for beds, the invention providing a great many advantages over the prior art.

In Fig. l, there is shown a pair of members I0 and I2 which areA located at angles to each other, this angle being lshown *for purposes of illustration as a right angle and the members I0 and I2 being' jointed by a corner piece or block I4 of triangular shape.

It is desired that these pieces be rinly joined together and at the same time provide a round corner,A as for instance, for upholstery purposes or the like or for the purposes of improved appearance and ornamentation as will be explained below, as well as for increased strength of the' joint and increased `strength of the article in which the joint is located by reason of the fact that the members Ill and I2 may be located on edge in vertical relation instead Iof being secured together in horizontal relation, the latter usually being the case.

The joint members I9 and I2 and I4 are provided with slots or keris as at I6 and I8, one slot L being located in the top of the joint and one at the bottom, as clearly shown in Fig. 1, the slots being alined and for purposes of illustration, the slot in the triangular piece I4 is parallel to the base 20 thereof while the slots in the members I and I2 are placed therein at angles Ithereto, as most clearly shown in Fig. 2.

It is to be noted. that the depth of the slots is not particularly critical but as will be apparent the slots must not approach too closely and should leave sui'flcient ymaterial therebetween to carry the load.

It has been found that in all corner joints of furniture and the like, the material left between the slots is many times that needed forepurposes of strength at the particular location as shown.

It will be noted that the .slots are lcoritinuous from member ill', through block .i4 and through member I2.

A generally triangular band indicatedfat 22 -is adapted to be inserted in the slots and is provided with a rounded portion Vinstead of r avpoint at-theexposed llocation thereof 24. The band22 is provided with a long `straight section =2-dis .posedin the Lslot d@ and at-the ends of the *section 26 the same is bent as at 2% to form straight sections til-running along the sides ofthe members Illand I2 Itoward `vthecorner itself, merging into the rounded portion 24, whichasshown in YFig.,s'2, fis -approached -by the corner 32 of the ,corner-block "I4,

.It will be noted that the members IB and I2 terminate short of the point of the corner piece at 32 and that, therefore, the corner itself is com'- pletely rounded leaving a space at-each side of thelpoints32fas indicatedat 34, but this space may be occupied by a shaped blockv *3-5, see 'Fig. .-12, or a concealing ornamentalsheet ymay be inserted under the bands. 1

- This ,particular joint hasagreatfmany advantages/,among 'them lbeing increased strength, ease and accuracy of assembly and `improved appearance; also, however, yit is pointed -out that in makingva base-or-box springthe parts and-|2 vmay come in the -usual six `foot lengths -andja .baseior'box springrmay be the usual'six vfoot and two -to four inches. In thecustoma-ry-manufacture -of 'ftheseebase springs, the members IIJ fand -I 2 are :laid horizontallyone on the other and-connected and then -have toY be roundedoi, all 'of which `is "avoided in the :present invention-and, at the same time, -the members It andai-2 being on .edge are many times stronger in thedirection of Athe leading `as Aneeded inthis art, than -will -be the horizontal members of the prior lgartjust abovevexplained.

The .jointitself as exemplied inFig. 1, isifornamental `in nature comprising as -it does `the iflsually `woodenmembers |10, 'I2 and 'I4 and the metal bands which vare exposed at the front thereof. It is to be clearly noted that the corner block I4 may be extended downwardly to form a leg either Afora base spring or af-chair, -table or thelike; on the other hand, `the triangular corner block I4may-be left as it is and the space 34 may be taken up bymeans at theupperend of a leg as, for instance, as-c1early `shown 'in Figs. 9 and 10, .where the leg is shown at36 and the inner engaging part-at 38 nts into the space-34 :and is connected thereto 'by the bands, whereas, the horizontal'shoulder atlli serves-as a support for the `cornerblock I4 so as to support the device.

The bands may take many shapes, one of them being-in the "shape of a parallelogramyasclearly shownat V42 in- Fig. 5-and in this case the band maybe fused,v as-a conneetionto a A T-joint 44, 'the together.

part of the band 46 being exposed and the ends being bent inwardly toward each other as at 48 and lying in slots in the member 5'0, the arms 48 merging into the inner member 52 traversing a slot in the member 54 to complete the joint.

Also, the band may assume the shape of a triangle, see Fig. 6, at 56, wherein a member 58 is exactly like that a I4 but in this case the members 6B and 52 come together in a solid joint as at E4. IIn this case the "slots inthe member 58 are exactly like Vthose inthe corner block I4 and the slots in the members E and 62 are exactly the same as in the members Iii and I2 in Fig. 1.

JA variation of this joint is shown in Fig. 11, wherein the three pieces 6I are connected by ap'roperly shaped band 63'.

In this connection, it is to be noted that the bands are all made so that the corners at 66 in allca-ses are compressed to at least a slight degree since the inside angles of the bands are rounded but the slots terminate -in sharp .points as 'would bethe case -if theywwere tosbe made-by aconventional saw slot orkerf. In vthis manner, the v`bands closely engage and Ahold the members In addition cross pins `may `be used merely to held `thebands vfrom dropping outof the slots if "such should 4ever be .the '-tendency.

A still further modification-is shown-iniig. 7, in which the band `58 -is circular 'or continuously curved. In this case the slot vin'thecornerbrace 'EYB is on the arc of a circle as are-alsothe slots-in the members 'i2 vand 'I4 making up the corner, but the space 'le is substantially the fsame fas-the space at Sil and may be Vused for the same purpose.

It is also pointed-out that 4the.-space-1-i4 may be filled with an ornamental block so that'the entire joint l.is vsolid and is ornamented Vbyfthe bandsas in Fig. vlZYand at i8 inFig.8,the spaces indicated at 34 in Fig.-2'and 16 vin Fig.r7 vbeing lled as at Sil-in Fig. VSas, `for instance, iby some contrasting material to form fan ornamental joint as well-as a novel construction.

It will- :be seen that this invention -providesa f new and Anovel `joint which-isstrongerboth -becauseof itsconstruction `and'because of the fact that it permits the use ofthe Wmembers .Hl and I2, for instance, on edge arranged vertically .rather than at `'and horizontally; `the joint -is extremely ornamental and `may beused with or without a leg or with or without-extra ornamental means, `such as deSCribedat-Sfin-Fig. e8.

Also, thebands and the-joint mayl assume-many different lshapes as -indicated above, those -dis'- closed not `being exclusive, but only illustrative. -Figs. 13'to lfillustratea `feature whichis usefulnot only `to connect the freeendsof the-band 22 which meet Yat E2 for instance, but :also to anchor the bands tothe corner blocks and to anchor Athe coilsprings irmly to the iframe.

Aplated secured to `theends'o 'the-band in overlapping relation, as by welding, Tor vany other convenient'means-'a's indicated vat' 86, thus finishing the band and making it continuous. A flange 88 on the plate overlies the corner block and is nailed thereto or otherwise'secured, vand a pair of apertured ears 9@ receive the lowermost coil 92 of a cone bed spring which iis, threaded rst through .one hole and then 4through .the other by a turning motion. This, of course,.locks or anchors the spring to the Ibase frameand eliminates the necessity `for special spring -anchors. Thus the plate 84 provides a triple func tion; it secures theendsf'BZof `theband in abutted relation; it secures the band to the corner block; and it locks the spring to the frame.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed otherwise than as set forth in the claims, but what I claim is:

l. A joint construction comprising a plurality of members arranged at an angle to each other, each member having an inner side surface facing a corresponding inner side surface of the other member, and an opposite outer side surface, and a corner block located in the included angle between the members, said members having their inner side surfaces facing each other in parallel overlapping contacting relation to the adjacent side surfaces of the corner block, each member having an edge exposed slot and the corner block having an exposed slot in alignment with the slots in the members, said combined slots forming in effect a single continuous slot from the outer side surface of one member, across the corner block, and intersecting the outer side surface of the other member, and a continuous closed endless band having a part thereof in the slot, said band extending out from the ends of the said combined slot and extending along the outer side surfaces of the members dening the joint, the part of the band extending out of combined slot being exposed and visible.

2. The joint construction of claim 1 including a second band similar to the first-named band, one band being located in the topmost portion of the joint and the other being located in the lowermost portion thereof.

3. The joint construction of claim 1 wherein the slots are curved.

MACl LEVINE.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 122,158 Collins et al Dec. 26, 1871 434,229 Arnold Aug. 12, 1890 

